Out-of-bounds read in w3m - CVE-2023-38253
Published: November 18, 2023
Vulnerability identifier: #VU83259
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-38253
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: w3m.sourceforge.net
Affected software:
w3m
w3m
Detailed vulnerability description
The vulnerability allows a remote attacker to crash the application.
The vulnerability exists due to a boundary condition within the growbuf_to_Str() function in indep.c. A remote attacker can create a specially crafted HTML file, trick the victim into opening it, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.
How to mitigate CVE-2023-38253
Install updates from vendor's website.